PulseCam
Why PulseCam?
Measuring blood perfusion is important in medical care as poor perfusion could be an indicator of injury and disease. However, currently available devices to measure blood perfusion like laser Doppler flowmetry are bulky, expensive, and cumbersome to use. An alternative low-cost and portable camera-based blood perfusion measurement system has recently been proposed, but such camera-only system produces noisy low-resolution blood perfusion maps. In this project, we propose a new multi-sensor modality, named PulseCam, for measuring blood perfusion by combining a traditional pulse oximeter with a video camera in a unique way to provide low noise and high-resolution blood perfusion maps.
High-resolution blood perfusion imaging using a camera and a pulse oximeter
Our proposed multi-sensor modality improves per pixel signal to noise ratio of measured perfusion map by up to 3 dB and improves the spatial resolution by 2 – 3 times compared to best known camera-only methods. Blood perfusion measured in the palm using our PulseCam setup during a post-occlusive reactive hyperemia (PORH) test replicates standard PORH response curve measured using laser Doppler flowmetry device but with much lower cost and a portable setup making it suitable for further development as a clinical device.
Multi-sensor Modality
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Measuring blood perfusion by combining a traditional pulse oximeter with a video camera in a unique way to provide low noise and high-resolution blood perfusion maps.
High SNR, High Spatial Resolution
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Our proposed multi-sensor modality improves per pixel signal to noise ratio of measured perfusion map by up to 3 dB and improves the spatial resolution by 2 – 3 times compared to best known camera-only methods.
Low Cost
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Since a pulse oximeter is readily available as a low-cost medical device and CMOS cameras of various form factors, sizes, and specifications are available commercially, our proposed PulseCam can be used as a portable and low-cost blood perfusion monitor
People
Mayank Kumar
James Suliburk
Ashok Veeraraghavan
Ashutosh Sabharwal
EMAIL US
info@gmail.com